Thank you! That helped with the resizing. This created another issue on mobile:
1. There's no padding at the top, so part the image is cut off by the white background of the navigation bar.
2. In order for the full height of the image to to be visible on desktop displays, I had to put a spacer bar on top of the image. Now, on mobile, that spacer bar creates a dark blue box below the banner image. How do I remove this, just for mobile?